Improvement in metallic stuffing-boxes



, WILLIAM H. HOLLAND.

Improvement in Metallic Stuffing Boxes.

Patented April 9,1872.

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WILLIAM H. HOLLAND, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN METALLIC STUFFlNG-BOXES.

Specification forming part of Letters Patent No. 125,569, dated April 9, 1872.

SPECIFICATION.

I,.WILLIAM H. HOLLAND, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain Improvements in Metallic Stuffing-Boxes, of which the following is a specification Figure 1 of the drawing is a central vertical longitudinal section of my improved stuffing-box. Fig. 2 is a central vertical transverse section, showing the interior of the stuffing-box with two segments of one of its rings removed. Fig. 3 is the same as Fig. 1, with the rod removed.

The present invention relates to certain new and useful improvements in metallic stuffing-boxes, having for its principal objects simplicity and economy in] construction and cost, and durability and effectiveness in wear and operation. My improvements consist in ainly of arranging a metallic stuffing-box with either one or two rings, beveled on the interior, and containing rings formed of peculiarshaped segments arranged to break joints with each other, and operated by springs, so as to take up any wear on the rod, and prevent the escape of steam, 850., between or over the joints, as will be hereinafter more fully described.

a a a a in the drawing represent the.oase

-of a metallic stuffing-box, within which, at

each end, is a ring, a c d cl, with a beveled inner periphery, fitting against which and a rod, 0 e, is a ring formed of wedge-shaped segments f f f f, whose joints are covered by a ring formed by flat annular segments 9 g g g, with beveled outer rims which fit against the beveled inner periphery of the rings 0 c d d. The flat segments 9 g g g are countersunk on the face to receive springs h h h, which play between and against the said segments 9 g g g, and press both the series of segments g g gf f f f tightly into therings 0 c and d d, and consequently against the rod 6 0, thus taking up any wear on the rod 0 e, and forming a perfectly steam-tight joint, with rings 0 c and cl d, and thereby preventing any over-escape of steam into the box aaaa.

Instead of two rings, 0 0 d 01, only one may be used, with the springs h h h bearing against one end of the box a a a a; or the ring or rings 2 0 d d may be permanently formed on the end or ends of the interior of the box a a a to, instead of being adjustable; though I prefer, for better security, to employ two rings, arranged as shown in the model, and illustrated by the drawing, by reference to which it will readily be seen that the segments f f f f, breaking joints with the segments 9 g g g, precludes the possibility of the steam, 850., escaping between them; and that the segmental rings form a perfect wedge, which is by the springs h h h pressed tightly, at all times, into the wedge-shaped space formed by the beveled inner periphery of the rings 0 c or d d and rod 0 0, thus taking up any wear on the rod, and preventing the escape of steam, 860., through the joints between the segments ff f f g g g g and rings 0 0 and d d, which are kept firmly pressed against the ends of the case a a a by the springs h h h acting on the face of the segments 1 g g g, thus obstructing the entrance of steam, &c., at the ends of the box a a a a.

By the simple arrangement and construction of the various parts above described, it will readily be seen that my improved stuffingbox may be manufactured at a comparatively small expense, and that any wear of the several rings and segments is at once taken up by their wedge-shaped form, so that they may be used until completely worn out, and the joints are at all times tightly secured against leakage.

Having thus fully described my improvements, what I claim as my invention, and desire to have secured to me by Letters Patent, 1s-

1. A metallic stuffing-box, at, having one or two rings, a d, formed with a beveled interior periphery, the wedge-shaped segments ff, flat segments 1 g, and springs h, substantially as specified.

2. The flat-segments g g g g, formed with beveled outer rims, and constituting a ring, operated. by springs h h h against the ring formed. by the segments f f f f, and in the In testimonywhereof Ihave signedmyname rings 0 0 d 01, substantially as specified. to this specification in the presence of two sub- 3. The ring or rings a 0 d d, containing the scribing witnesses.

segments ff and g g or f f g 9, formed and WM. H. HOLLAND.

arranged as above described, in combination Witnesses:

with the springs h h h, rod 0 e, and stuffing- SAML. M. BARTON,

box a a a a, substantially as specified. CARROLL D. WRIGHT. 

